222 BRITISH BUTTERFLIES AND MOTHS 



with grey, with the veins and four transverse bands dark 

 reddish-grey; the three posterior of these are also con- 

 tinued across the similarly marked hind-wings ; the 

 cilia are prettily chequered whitish-ochreous and dark 

 reddish-grey. 



The larva is pale green, with two white dorsal lines, 

 edged with darker green ; the subdorsal lines and spira- 

 cular also white. It feeds in September on clover and 

 other papilionaceous plants. 



The perfect insect appears in May and June, and is 

 very common in clover fields, flying by day ; it sits with 

 its wings partially erect. 



FAMILY XI. FLDONLD.E. 



LOZO GRAMMA PETRARIA. THE BKOWN 

 SILVEK LINE. 



(Plate X., Fig. 7.) 



This species is common, and pretty generally distri- 

 buted throughout England, and has been noticed in 

 Ireland in the county of Wicklow ; I am not aware that 

 it has been observed in Scotland. 



The expansion of the wings is about 1 inch. The 

 fore-wings are pale brown, with two oblique dark brown 

 transverse lines, edged externally with pale ; the second 

 of these lines is considerably thickened towards the 

 inner margin, and its pale edging is almost whitish ; 

 between them is a dark brosvn central spot ; towards 

 the hind margin is a pale, wavy, transverse line ; the 

 hind-wings are very much paler, with a darker trans- 

 verse line beyond the middle. 



The larva is olive-green, with numerous slender 



